Doctor profile · Federal record

Dr. Eric Larsen, D.O.

Family Medicine Physician (CMS: Hospitalist) · Missoula, MT

  • NPI 1770998353
  • Accepts Medicare
  • 12 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2827 Fort Missoula RD
Missoula, MT 598047408
(406) 327-4171
Additional location
500 W Broadway St
Missoula, MT 598024008
(406) 543-7271
fax (406) 327-1834
Mailing address
11610 Cattail Way
Missoula, MT 598028743

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
December 1, 2023
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Montana #MED-PHYS-LIC-58628

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770998353. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
527
Distinct HCPCS
5
Medicare allowed
$67,293
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 208 91 $117
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 112 106 $171
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 95 47 $78
99239 Hospital discharge day management, more than 30 minutes 74 72 $113
99291 Critical care, first 30-74 minutes 38 33 $210

In context: peer comparison

Among 29 peers in this city , average services per provider: 77. This provider delivers 6.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Eric Larsen's medical specialty?
Dr. Eric Larsen practices Family Medicine Physician in Missoula, MT.
Where does Dr. Eric Larsen practice?
Dr. Eric Larsen practices at 2827 Fort Missoula RD, Missoula, MT 598047408. Office phone: 4063274171.
What is Dr. Eric Larsen's NPI?
Dr. Eric Larsen's National Provider Identifier (NPI) is 1770998353, issued by NPPES.
Does Dr. Eric Larsen accept Medicare assignment?
Yes. Dr. Eric Larsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Eric Larsen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.